Let your children discover the joy of creation by gifting them this Discovery kit. Your children will be excited to see the crystal rocks grow in size as they are kept in the aquarium. Apart from a hands-on experience, this kit also makes children aware of fun facts about crystals and ground deposits.Click here for instructions and tips.Details:Rocks grow up to 4"Instruction manual includedSet up time is 10 minutesFor ages 12 and upContents:AquariumGrowing rocks (0.44 oz./12.4 g)2 bottles growing solution (4.5 fl. oz./133 mL each)1 background1 sticker sheetPosterWARNING: Skin and eye irritant. Harmful if swallowed.